1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bddcb477927a3d54ba744ae7c8ee3917daa16b009a1a10844afe44869c3be4e. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/74e02d51-9779-4fc5-a71d-aa38b519cc83.json and https://artists.proofprofile.net/proofs/artist/74e02d51-9779-4fc5-a71d-aa38b519cc83.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ad1a60c9d956c95565fa40ba67ceaf02ba41d86f2c6ae526128c6ee1a79159. Chain 2 (Bitcoin): anchored in block 957730 (2026-07-12T16:41:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAZ2222358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423da4b03686637f28c6d488c9f64deb883af1ddbf7729a7a61c35ad5ec108a5. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAZ2222360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ff1f0617dd066a4b006a37b48b1203feb043754fb68a5e07ddbed4995d6390. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAZ2222361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c26caa858f6a334eda99e1c0b72bced7fbfef7a6e0dd4ed1b5d722bafe48fc. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAZ2222365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41a90244669ae5ae71e9d3c01f22d51d0207e4c42aff68abdaa7cf0595e12b9b. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAZ2222368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2865cf88910fab2875aaa4b81fa5dff2d1fa6325eb4c1c36f709a5689fe98274. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAZ2242891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd7b5a90adb1b6a39303c771057082ee24f5d1f1893b4acd6b14b031d60d07a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAZ2242895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeafb5a671cb6f1538392e8ac581e21353bff6dbb2644fc1a021a9fca5487342. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAZ2242897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc81a6983099d20870e3c35680d3c3a48bdfbf15b3d8a26fbb01c8a6c6f0f36f1. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAZ2242900.
Amargo Dolor / Eres Quinceañera / Mi Rebeldía / Ayer Te Vi / Charlas De Amor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf442dddb06bdb5babeace0ea8050de607757d0719ec845ba428a1b6c04878d49. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWT2373209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe42052d431f1280be46a40f8e6fc40c1b3363375b6863f382c9be29b8740051. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:24:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6H2230400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb2b92b5f498f6cf9444b6d7a3b0cee0b334a284ce5831fb79b5fbbda85bab4d. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6H2230401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a89de46e4d56a49d7cc2dc439a611322a23f3d2237e933896e53a0793239f3. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6H2230402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f0cca007744668ea524cb7d48306cc49ce4773dbb3b5db60c93caa377b2a7e. Chain 2 (Bitcoin): anchored in block 957726 (2026-07-12T16:04:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6H2230405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e0c522bff999b2dde1deb5f7fd21d7f67975147e98e5b53e24aaf18a525e97. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6H2230406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bed3c8e4b3d063ca6d0a879444265a3b70e19b0a2a433db5c0b136d1fee86fe. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6H2230408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc88e463853f773ca6e9388fca015520583711c8844365cb54f4dcfa13df13831. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6H2230409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c947cc586c3219efcd5b928d2b0a7b38b3cdb62eec59514e1fc1d3041ad52fb. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6542267866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59177a75f3e13491186525b2426072cc4651d26b81c9088750de35fec62ee7f. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6542267810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41447912dc882a6549f32fc2595f79d1de59596525c315757f31a6e9d4e0405b. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6542267809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x472880898fd2be16f29b805aa3d6ad5ca35fac05b8e7747392649fadb00aa3a8. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:37:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6542267807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x027581f266f5f4dff5a630af3e23bef1292f6f981d2fb06f12ef8175b30b9d22. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6542267867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2900c17926b570a6a1e3cf16eff9f21932ee2252f5b58dfa79cb65e1f8d0f6c6. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6542267864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf07d89a84f5fd1e76eddfc7599ce4eb9585246c6f4a0acc237aed83401f76a. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6542267808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x214b801e08a78e3d0be670ca20c2506deebfaa8290b34b9f8fd4594052493fca. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6J2257764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a96f79bcfad9f6e553bb5ff52949b95c00f0af589d49810cd9a43dbce547794. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6J2257773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b89ebf4bc55b7d7f145c98ac3d47326f27950f0f711dfc8e254953c600c3d2. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6J2257775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b633829001635fd3f4af1158f8b65cdf9d2f6596460f5e9ad80ac9008fabca. Chain 2 (Bitcoin): anchored in block 957726 (2026-07-12T16:04:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6J2208626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63486a6b7f3bff02c3d77ece3d7b1993f1f66cb55e9143219ea47b4e367b2b23. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6J2208628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x961497159800f040dddd089aca201e0d178c20140561305df3283e8c544dd1f5. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6J2208629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07c3a098cdeb99847856cf157aee53b2c4861269d48f37daeec56a62cca19e7. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6J2208632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d74ba3f29f8218f8f24b891ae737bf01d96301b6962e6ff8a9008ef0df0c87b. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6J2208634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x009857d5a22d50aea07e20d31658a4b67a7a04f33a3ae58e7ff5c3076f99f030. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6J2233716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3be4f581e4a7d5bb432beea6d3587f7aa38e190d90f0a3c47b0a18bfbb744b0. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6J2233717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ace2f9636d7a687487cf96d504d9a1d1925a0a937a501cb5d95ab75bcb2872e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6J2233718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc534f8ebba7b5a9d87ec5079074eed69ccadf44097145b09e6c4b41a8f204634. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:35:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6J2233719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x560fe4e17e18089b3aac0ec75baea520af7ba38c6ce7e875253c280fd98326ad. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6J2233720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db65cb6af375950ee0df08440b29a7a32efa271bee3848626682e9e5dfbcfef. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6J2233721.